The Office of Fair Trading is urging people to check the labels when it comes to bedding.
Its warning comes after a 62-year-old from the UK was convicted at Douglas Courthouse of selling unsafe memory foam mattresses without a licence.
Neil Young of Lancashire was given a jail term of six weeks, suspended for two years, after admitting two offences.
John Peet, chief inspector at the OFT, says the prosecution came after painstaking detective work:
Emergency services respond to incident at Douglas Port
Manxman voyage delayed as police, fire and coastguard crews attend Sea Terminal
Junction closed following collision between motorcyclist and car
Motorists urged to avoid junction between Johnny Watterson Lane and Hillberry
Farmers' union calls for stronger legislation to tackle ongoing problem of sheep worrying
MNFU survey reveals impact of issue on Manx agricultural community
Steam train offers extra commuter service amid bus strikes
Bus drivers are due to enter their fourth round of industrial action
1-2% of vehicles on Island's roads untaxed
Department of Infrastructure estimates loss of income of £110,220